This Cle-Line jobber length drill bit set contains 115 cobalt steel drill bits, including sizes 1/16-inch through 1/2-inch in 1/64-inch increments, letter sizes A to Z, and wire sizes #1 to #60. The bits feature industrial-grade cobalt high speed steel (HSS) construction, a gold oxide finish and 135-degree split points for faster, easier drill penetration.
Heavy-Duty, Industrial-grade Cobalt HSS Construction
Designed to drill tough, high-tensile materials and work-hardening materials like high-strength alloy steels, stainless steel, titanium, manganese steel, armor plate, and inconel.